Nonlinear optical response of graphene oxide quantum dots fabricated from electrospun polyacrylonitrile fibers
The nonlinear optical response of graphene oxide quantum dots (GOQDs) fabricated by the carbonization and exfoliation of electrospun polyacrylonitrile (PAN) fibers is reported. Electrospun and carbonized fibers were characterized by SEM and XPS. SEM micrograph confirmed the formation of PAN fibers o...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-01-01
|
| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023001937 |
| _version_ | 1811173340271869952 |
|---|---|
| author | Celia L. Gomez O. Zaca Morán M. Rojas-López C. Morán-Raya P. Zaca-Morán |
| author_facet | Celia L. Gomez O. Zaca Morán M. Rojas-López C. Morán-Raya P. Zaca-Morán |
| author_sort | Celia L. Gomez |
| collection | DOAJ |
| description | The nonlinear optical response of graphene oxide quantum dots (GOQDs) fabricated by the carbonization and exfoliation of electrospun polyacrylonitrile (PAN) fibers is reported. Electrospun and carbonized fibers were characterized by SEM and XPS. SEM micrograph confirmed the formation of PAN fibers of 153.44 ± 6.44 nm, while by XPS the binding energies associated with sp2 and sp3 carbon hybridizations were found, after the carbonization process. On the other hand, the GOQDs obtained were characterized by photoluminescence (PL), UV–Vis, Raman spectroscopy, and High-Resolution Transmission Electron Microscopy (HRTEM). The GOQDs size of 10 nm was estimated by HRTEM. Raman spectroscopy showed the D and G bands associated with the sp2 and sp3 hybridizations of the GOQDs, by PL two energy values of 2.67 and 2.97 eV were calculated. The UV–Vis spectrum showed two absorption bands confirming the presence of GOQDs. The nonlinear characterization was carried out using the P-scan technique, previously photodepositing GOQDs onto an optical fiber, using a coherent radiation source at a wavelength of 1550 nm. The results obtained showed a saturable absorption behavior with a value of β=−2.474×10−4m/W and a nonlinear susceptibility of χ(3)≈−7.749×10−4(esu). The results of this work showed that GOQDs obtained can be used for optical switching applications. |
| first_indexed | 2024-04-10T17:45:19Z |
| format | Article |
| id | doaj.art-54d6004ec3864632901488648dad75f6 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-10T17:45:19Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-54d6004ec3864632901488648dad75f62023-02-03T05:00:03ZengElsevierHeliyon2405-84402023-01-0191e12986Nonlinear optical response of graphene oxide quantum dots fabricated from electrospun polyacrylonitrile fibersCelia L. Gomez0O. Zaca Morán1M. Rojas-López2C. Morán-Raya3P. Zaca-Morán4Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, CP 72050 Puebla, MexicoInstituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada, Ex-Hacienda de San Juan Molino, Km 1.5 de la Carretera Estatal Santa Inés, Tecuexcomac-Tepetitla, Tepetitla, CP 90700, Tlaxcala, MexicoInstituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada, Ex-Hacienda de San Juan Molino, Km 1.5 de la Carretera Estatal Santa Inés, Tecuexcomac-Tepetitla, Tepetitla, CP 90700, Tlaxcala, MexicoInstituto de Ciencias, Benemérita Universidad Autónoma de Puebla, CP 72050 Puebla, MexicoInstituto de Ciencias, Benemérita Universidad Autónoma de Puebla, CP 72050 Puebla, Mexico; Corresponding author.The nonlinear optical response of graphene oxide quantum dots (GOQDs) fabricated by the carbonization and exfoliation of electrospun polyacrylonitrile (PAN) fibers is reported. Electrospun and carbonized fibers were characterized by SEM and XPS. SEM micrograph confirmed the formation of PAN fibers of 153.44 ± 6.44 nm, while by XPS the binding energies associated with sp2 and sp3 carbon hybridizations were found, after the carbonization process. On the other hand, the GOQDs obtained were characterized by photoluminescence (PL), UV–Vis, Raman spectroscopy, and High-Resolution Transmission Electron Microscopy (HRTEM). The GOQDs size of 10 nm was estimated by HRTEM. Raman spectroscopy showed the D and G bands associated with the sp2 and sp3 hybridizations of the GOQDs, by PL two energy values of 2.67 and 2.97 eV were calculated. The UV–Vis spectrum showed two absorption bands confirming the presence of GOQDs. The nonlinear characterization was carried out using the P-scan technique, previously photodepositing GOQDs onto an optical fiber, using a coherent radiation source at a wavelength of 1550 nm. The results obtained showed a saturable absorption behavior with a value of β=−2.474×10−4m/W and a nonlinear susceptibility of χ(3)≈−7.749×10−4(esu). The results of this work showed that GOQDs obtained can be used for optical switching applications.http://www.sciencedirect.com/science/article/pii/S2405844023001937Graphene oxide quantum dotsOptical fibersNonlinear optical responseNonlinear susceptibility |
| spellingShingle | Celia L. Gomez O. Zaca Morán M. Rojas-López C. Morán-Raya P. Zaca-Morán Nonlinear optical response of graphene oxide quantum dots fabricated from electrospun polyacrylonitrile fibers Heliyon Graphene oxide quantum dots Optical fibers Nonlinear optical response Nonlinear susceptibility |
| title | Nonlinear optical response of graphene oxide quantum dots fabricated from electrospun polyacrylonitrile fibers |
| title_full | Nonlinear optical response of graphene oxide quantum dots fabricated from electrospun polyacrylonitrile fibers |
| title_fullStr | Nonlinear optical response of graphene oxide quantum dots fabricated from electrospun polyacrylonitrile fibers |
| title_full_unstemmed | Nonlinear optical response of graphene oxide quantum dots fabricated from electrospun polyacrylonitrile fibers |
| title_short | Nonlinear optical response of graphene oxide quantum dots fabricated from electrospun polyacrylonitrile fibers |
| title_sort | nonlinear optical response of graphene oxide quantum dots fabricated from electrospun polyacrylonitrile fibers |
| topic | Graphene oxide quantum dots Optical fibers Nonlinear optical response Nonlinear susceptibility |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023001937 |
| work_keys_str_mv | AT celialgomez nonlinearopticalresponseofgrapheneoxidequantumdotsfabricatedfromelectrospunpolyacrylonitrilefibers AT ozacamoran nonlinearopticalresponseofgrapheneoxidequantumdotsfabricatedfromelectrospunpolyacrylonitrilefibers AT mrojaslopez nonlinearopticalresponseofgrapheneoxidequantumdotsfabricatedfromelectrospunpolyacrylonitrilefibers AT cmoranraya nonlinearopticalresponseofgrapheneoxidequantumdotsfabricatedfromelectrospunpolyacrylonitrilefibers AT pzacamoran nonlinearopticalresponseofgrapheneoxidequantumdotsfabricatedfromelectrospunpolyacrylonitrilefibers |